ask your doctor about cymbalta. imagine you with less pain. cymbalta can help. go to cymbalta.com to learn about a free trial offer. >> pelley: well, the weather may be colder, but drought is still a major problem. in >>> the weather may be colder but draught is still a problem. 62% of the country is in draught. for more than 20% it is extreme or even worse. it has even brought the mighty mississippi to its knees. >> the coast guard is directing barges away from the mississippi. how often are you looking at that gauge to see how low this river is? >> i have a gauge app on my ipad and i look at it about three times a day. >> the army core of engineers have tried to keep pace with the draught dredging shipping lanes 24 hours a day since june. >> is this a matter of things will get worse before things will get better? >> mother nature has the last say in that. when we talk about water available, tax cuts' the real issue. >> but barge operators say water from the mississippi river is needed upstream and is held by the dam. each december it stops the flow into the mi